Weather for William Elam Lake, MO - William Elam Lake, MO Weather, Current Weather in William Elam Lake, MO. Local weather report for William Elam Lake, MO, Local William Elam Lake, MO weather. Forecast for William Elam Lake, Missouri, William Elam Lake, MO weather forecast. Find your local William Elam Lake weather forecast. William Elam Lake, MO weather conditions.